I have a table named (Products) and 2 column named Apple(A) and Grape(G). Each fruit as value of 1's. I want a query which will count all the 1's under each column and display it with total count under each fruit.
A G
1 1
1 1
I want output to show like below (Horizontally or Vertically)
Apple
2
Grape
2
Select count(Apple) as 'Apple', count(Grape) as 'Grape' from products
Related
I have a table with 2 columns, one of them is categories:
Category
AvgSum
1
10
2
100
3
1000
4
10000
5
100000
And I need to unite the second and the third row, also the fourth and fifth, and in the received lines perform the operation AVG
So the table has to be like this:
Category
AvgSum
1
10
2
550
3
60000
Any thoughts?
SQL tables represent unordered sets. You can use a case expression to define the groups:
select (case when category in (2, 3) then 2
when category in (4, 5) then 3
else category
end) as new_category,
avg(avgsum) as avgsum
from t
group by new_category;
I have a MySQL table which contains val_type column which have 3 type of values
id val_type company
1 rib 1
2 mod 2
3 rib 2
4 rib 3
5 mod 1
6 trop 1
$res= SELECT SUM(val_type) from tabl_name GROUP BY company;
with above query I get sum of all types in one
Result Required : Rib=3, mod=2 and trop=1
I want to get sum of all three types with one MySQL query. like how many rib,mod and trop.
Thanks
It sounds like you want to count all three types. You only need a basic GROUP BY query:
SELECT
val_type,
COUNT(*) AS cnt
FROM tabl_name
GROUP BY
val_type;
I need a MySQL query for following:
product Occur
---------------
alpha 3
beta 5
gamma 2
beta 1
gamma 6
alpha 0
and what I want:
Product total(Occur)
-------------------
alpha 3
beta 6
gamma 8
SELECT SUM(occur) FROM tableName GROUP BY product
you need to enter table name. so you will chose "occur" values from occur column from YOUR TABLE, group them by "product" and sum those products in the same group.
SELECT SUM(occur) AS total FROM tableName GROUP BY product
this will sort the result under "total" column. you can name anything you want.
What I Have:
I have a table where I have two basic columns on which the query is supposed to work
c1|c2
1 2
2 1
1 3
3 1
2 4
Now I want the result after the execution of the query is this
c1|c2
2 1
3 1
Notice
(3,1) was the last occurence of 1 and 3 no matter in which order they are as along as it is 1 and 3 and same is (2,1)
How can I achieve this where one value of the two columns is static for example in this case (1) is static and I want only those rows which has (1) in any of the two columns in their last occurrence.. Can any one help ?
Table 1:Domain Link Result
======================================================================
||Column1(words) ||Column2(links) ||Column3(frequency) ||
======================================================================
1 1 Any Number
2 1 Any Number
3 1 Any Number
4 1 Any Number
1 2 Any Number
2 2 Any Number
3 2 Any Number
4 2 Any Number
Table 2:Sub Link Result
======================================================================
||Column1(words) ||Column2(sublinks) ||Column3(frequency) ||
======================================================================
1 a Any Number
2 b Any Number
3 c Any Number
4 d Any Number
1 e Any Number
2 f Any Number
3 g Any Number
4 h Any Number
And so on.
In the above scenario user entered 4 words and 2 domain links. Now the frequency of 4 keywords is calculated on domain links as well sublinks and stored in separate tables as shown above. I want an aggregate result like below:
Table 3:Final Result
==================================================================================
||Column1(words) ||Column2(Domain links) ||Column3(Total frequency) ||
==================================================================================
Row1: 1 1 Total of frequency in both tables
2 for word "1"
----------------------------------------------------------------------------------
Row2: 2 1 Total of frequency in both tables
2 for word "2"
----------------------------------------------------------------------------------
Row3: 3 1 Total of frequency in both tables
2 for word "3"
----------------------------------------------------------------------------------
Row4: 4 1 Total of frequency in both tables
2 for word "4"
----------------------------------------------------------------------------------
I tried the following query in MySQL:
SELECT t.`keyword`, t.`link` SUM( t.`frequency` ) AS total
FROM (
SELECT `frequency`
FROM `domain_link_result`
WHERE `keyword` = 'national'
UNION ALL
SELECT `frequency`
FROM `sub_link_result`
WHERE `keyword` = 'national'
)t GROUP BY `keyword`
But in Column 2 of the final result I get only first link instead of two links for row 1. How can I get both links or any number of links entered by user in a single row ?
Words and Links have VARCHAR as type and frequency has INT type.
If you want to collapse several rows into one and still be able to see the information, you have to use GROUP_CONCAT
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
This outputs the collapsed values separated by commas, i.e.: a string. In your programming language you can split this string if you need individual values.
Your query would look somehow like this
SELECT keyword, GROUP_CONCAT(links), SUM(frequency)
FROM (subquery)
GROUP BY keyword
Which would output something like this:
==================================================================================
||Column1(words) ||Column2(Domain links) ||Column3(Total frequency) ||
==================================================================================
Row1: 1 1,2 sum of freq.
----------------------------------------------------------------------------------
Row2: 2 1,2 sum of freq.
----------------------------------------------------------------------------------
Row3: 3 1,2 sum of freq.
----------------------------------------------------------------------------------
Row4: 4 1,2 sum of freq.
EDIT: Extra help for your query
Your query looks a little bit confusing to me. Try with a JOIN approach:
SELECT domain_link_results.word AS word,
GROUP_CONCAT(domain_link_results.links) AS domain_links,
domain_link_results.frequency + sub_link_results.frequency AS total_frequency
FROM domain_link_results
INNER JOIN sub_link_results
ON domain_link_results.word = sub_link_results.word
WHERE domain_link_results.word = "national"
GROUP BY domain_link_results.word
On the other hand, it might be better to have all the links in the same table, and an extra field to determine if it's a domain link or a sublink. Without knowing more about your system it is hard to say.